Added migrations

bin/migrate.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env sh
+
+# ensure migrate env is initialized
+$(go_migrate version >/dev/null 2>&1)
+version=$?
+if [ $version != "0" ]
+then
+    echo "Creating base table..."
+    $(go_migrate init >/dev/null 2>&1)
+    init=$?
+fi
+
+# check again
+$(go_migrate version >/dev/null 2>&1)
+version=$?
+if [ $version != "0" ]
+then
+    echo "Unable to run migrations."
+    exit 1
+fi
+
+# run migrations
+go_migrate up
+echo "Done."
+
+exit $version